Thanks Henrik, your information really was helpful. Now I'm reading pic basic pro manual, hope it will clear another set of questions I already have

Regarding the easy pic v7 board, my specimen has the following problems:

1. Included LCD module (especially 2x16 one) is very low contrast and no backlight - almost invisible daytime.
2. The handle of pot for lcd contrast adjustment broke off (no, I'm not beginner with electronics, I'm doing consumer equipment repairs for last 20 years)
3. A lot of jumpers when I lift them up, break.
4. Power supply part produces loud whinning noise.
5. The board manual says "it supports more than 250 microcontrollers of pic family" but does not specifies which ones are supported!
6. There is no information on specific jumper setting per specific MCU. I had to use google, which helped in case of PIC16F84A (someone already had that problem and asked them online) and I had to use guesswork in case of 16F628A.